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Molded lip seal with polytetrafluoroethylene liner and method for making the same

  • US 4,239,243 A
  • Filed: 04/04/1979
  • Issued: 12/16/1980
  • Est. Priority Date: 04/04/1979
  • Status: Expired
First Claim
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1. A shaft seal comprising an annular elastomeric body having a molded lip, and said molded lip having bonded thereto a hydraulically formed liner of uniform thickness of sintered polytetrafluoroethylene.

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